Unteraar Glacier

Unteraar Glacier is a large ice field in the Bernese Alps where two major glacier streams join to form a single flowing mass of ice across the high mountains. The glacier spreads across roughly 13 kilometers and descends to around 2100 meters elevation, displaying the crevasses and sculpted ice features that characterize active mountain glaciers.

Scientists including Louis Agassiz began studying this glacier in the 1800s, developing methods to measure how ice moves and changes over time. Their work established this location as an important place for glacier research in the Alps.

The glacier maintains research stations where scientists gather data about ice formations, contributing to Switzerland's reputation in environmental studies and Alpine research.

You can reach this glacier by walking trails from Grimsel Pass during the warmer months when trails are clear and accessible. Bring proper mountain boots, layers of clothing, and plenty of water since weather changes quickly at high elevations.

The glacier surface contains large natural sinkholes deep enough and wide enough to hold several sports fields within them. These holes form as water flows beneath the ice, revealing the constant movement and melting happening inside the glacier.

Location: Bern

Elevation above the sea: 2,152 m

GPS coordinates: 46.56500,8.21915

Latest update: December 12, 2025 07:57